I like the idea of having rarer items in the game but I also have some problems with it. Considering the incredibly low drop rate of these silver/gold items there is going to be a lot of farming which for people trying to level can get to be a pain and depending on how much better the stats are these items will sell for much more than 200k. Meaning, it will just start another trend of finding really rare items, selling them for way too much and repeating the process until the item loses its rarity and inflates the economy. You could say that it can't happen if the items actually don't drop that often but it is surprising how deteremined and persistent people can be when faced with a challenge. However..the things I just said are unfortunately a part of the game that really can't be changed. :P